Staging

Cancer 101: Cancer Explained

Medical Definition of Staging

Staging: stagingDoing exams and tests to learn the extent of a cancer, especially whether it has spread from its original site to other parts of the body. The following stage numbers are typically used in staging:

  • Stage ICancer cells are found only on the surface of the affected organ or area.
  • Stage IICancer cells are found in the deeper tissues of the organ or area and have spread.
  • Stage IIICancer cells are found in even deeper tissues and have spread to nearby lymph nodes or other nearby areas.
  • Stage IVCancer cells are found throughout the organ or area and in nearby lymph nodes and/or have spread to other parts of the body.


Quick GuideUnderstanding Cancer: Metastasis, Stages of Cancer, and More

Understanding Cancer: Metastasis, Stages of Cancer, and More

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Reviewed on 6/9/2016

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